Which sentence does not contain any errors in comma usage?

A.
According to my mother, an inner tube, is the best way to be in the water.

B.
If thunderclouds are rolling in, get out of the water.

C.
Oh look out, for that motorboat!

D.
Thinking about my afternoon plans I didn't notice the crashing wave until it was too late.

Question

Which sentence does not contain any errors in comma usage?
 
 A.
According to my mother, an inner tube, is the best way to be in the water.
 
 B.
If thunderclouds are rolling in, get out of the water.
 
 C.
Oh look out, for that motorboat!
 
 D.
Thinking about my afternoon plans I didn't notice the crashing wave until it was too late.

anonymous · Answer

@Whitemonsterbunny17  i think this one is B. i don't know though

whitemonsterbunny17 · Answer

This one is B. (:

whitemonsterbunny17 · Answer

Hahaha yep. xD

anonymous · Answer

It's B

whitemonsterbunny17 · Answer

Uh-oh.
OS is starting to lag. D:

anonymous · Answer

Nooo

anonymous · Answer

They should get that under control

anonymous · Answer

i can't close this question. Can i ask you this last one on this post?

whitemonsterbunny17 · Answer

It's because there are sooooo many people online trying to post questions at the same time.. The server can only handle so much. :/
They are working on making the server better though. c:

whitemonsterbunny17 · Answer

It shows it as closed for me.. lol

whitemonsterbunny17 · Answer

But okay, as long as it's only one question.. :p